相對比活性 的英文怎麼說

中文拼音 [xiāngduìbǐhuóxìng]
相對比活性 英文
relative specific activity
  • 相 : 相Ⅰ名詞1 （相貌; 外貌） looks; appearance 2 （坐、立等的姿態） bearing; posture 3 [物理學] （相位...
  • 對 : Ⅰ動詞1 （回答） answer; reply 2 （對待; 對付） treat; cope with; counter 3 （朝; 向; 面對） be tr...
  • 比 : Ⅰ動詞1 （比較; 較量高下、 長短、距離、好壞等） compare; compete; contrast; match; emulate 2 （比...
  • 活 : Ⅰ動詞1 （生存; 有生命） live 2 [書面語]（救活） save （the life of a person）:活人無算 （of a goo...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 活性 : [化學] activity; active; activated活性肥料 active fertilizer; 活性酵母 active dry yeast; 活性粘土...
  1. While the fruits ripening process was delayed in leetrl antisense fruits. epinastic of leaves in leetrl antisense plants was only occasionally observed, which was not observed in leetr2 antisense plants ; ( 5 ) when treated by exogenous ethylene ( 25ul / l ), the abscission of antisense leetr2 petiole explants was delayed. moreover, leaf epinasty failed to be induced by ethylene treatment c, which suggested that these tissues were insensitive to ethylene

    （ 5 ）植株衰老和葉片脫落延遲，花瓣脫落也明顯的延遲，在轉反義leetr1基因番茄的果實成熟特性被明顯改變，表現在乙烯釋放高峰延遲，果實顏色出現變異，以及和成熟相關的酶活性的改變，然而，轉反義leetr2基因的果實的成熟特性與對照相比無明顯差別。
  2. Elevated [ co2 ] treatment resulted in the larger accumulation of carbohydrate ( soluble sugar and starch ) in leaves of anthurium andraeanum lind during short - term experiment, but the difference of three treatment groups is no striking during long - term experiment. chlorophyll content, chlorophyll a / chlorophyll b ratio in leaves increased, while soluble protein decreased in elevated [ co2 ] during experiments. elevated [ co2 ] led to the increase of rubp carboxylase activity and the decline of glycolic acid oxidase activity during short - term experiment, but the rubp carboxylase activity decreased after 60 d, the glycolic acid oxidase activity increased after 90 d

    高濃度co _ 2處理的紅掌，葉片中的葉綠素含量增加，葉綠素a葉綠素b升高，但可溶性蛋白含量下降，並且隨著處理時間的延長，可溶性蛋白含量的下降更為明顯，處理150d時， t1 、 t2的可溶性蛋白含量與ck相比分別下降了36 . 7 、 28 . 2 ；高濃度co :處理的前30d ，高濃度c02抑制了go活性， rubpc活性升高:處理以記時，高濃度coz處理組的rubpc活性降低， go活性仍然低於對照;處理以月後，高濃度co :處理組的rubpc活性低於對照，其中t2的rubpc活性顯著下降，而go活性升高。
  3. If we can find a way to artificially enhance the adsorption of activated carbon, its benefits on economy and environment will be considerable. it is the aim of this work to investigate electrosorption of chloroform in water on granular activated carbon. the potentials on working electrode are controlled by potentiostat and the concentration of chloroform is measured by headspace gas chromatography

    實驗用恆電位儀作控制電源，調節工作電極電位（相對于參比電極電位）來控制加在活性炭上的電場，用頂空進樣法測定水中氯仿的剩餘濃度，參照方法與依據都是國家標準方法或國外先進方法。
  4. 8. after fumigation for 3h in diverse concentration so2, the cat activity of resistant plant and sensitive plant is obviously less than the check group, and the rate of cat decrease rises with the rise of so2 concentration. the cat activity of resistant plant is comparatively stronger than sensitive plant ' s

    8 .不同濃度的50 :熏氣3h后，抗性和敏感植物體內的cat活性均明顯低於對照，而且隨50 :濃度的增大cat降低的比率也隨之增大，濃度越大，差別越顯著，而且抗性植物體內的cat酶活性相對高於敏感植物。
  5. In the present study, after treated with xanthine / xanthine oxidase system, cells viability, cells cycle, the expression of apoptosis proteins p53, bax and bcl - 2, and the level of superoxidase, glutathione, malondialdehyde of neuronal differentiated pc 12 cells in the absence and / or presence of c. chinensis extract were also compared

    通過比較活性氧作用細胞后的細胞活力、細胞周期、凋亡相關蛋白（ p53 、 bax 、 bcl - 2 ）水平以及細胞中sod 、 gsh 、 mda的差異，發現菟絲子提取物對活性氧引起的細胞凋亡有一定的保護作用。
  6. According to the environment features inside and outside caves in guizhou and current development of cave creature study home and abroad, making use of karstology, environment science, ecology, zoology and the theory of human - land relation, and through combining microscale with macroscale, component with system, field investigation with interview, and theory with experiment, the author chooses guiyang, anshun, pingba and honglin, where human activities are frequent and strong, to make a macroscopical investigation on animals and environment, and selects some typical caves in honglin to make a comparison study on environment features inside and outside the caves, biodiversity and present situation of plant society, and adaptability of cave animals to environment, and analyzes theoretically the effects of human activities on the cave animals and evaluates objectively the development potential of cave animal resource

    根據貴州喀斯特洞內外環境和國內外洞穴動物研究現狀，運用喀斯特學、環境學、生態學、動物學以及人地關系等相關理論，採取點面結合，特殊與一般結合，系統與要素結合，實查與訪問結合，理論與實驗結合的方法，選擇貴陽、安順、平壩、紅林等人類活動強度大的區域進行面上動物和環境的調查，選擇紅林地區代表性的洞穴對洞內外環境、物種多樣性及群落現狀、動物對環境的適應等進行對比研究，理論分析人類活動對洞穴動物的影響和客觀評判人類活動的洞穴動物效應與動物開發潛力。
  7. To meet the demands for large space and flexible compartmentation of buildings, laminated vierendeel trusses are adopted in high - position transfer story structures. first the bearing characteristics are analyzed, in which reasonable stiffness ratio of the upper chord, middle chord, and lower chord is derived. then combined with an actual engineering model ( 1 8 similar ratio ), the static loading and pseudo - dynamic tests of two models for laminated vierendeel truss used in transfer story structures are conducted, in which one model adopts reinforced concrete, and the other adopts prestressed concrete and shape steel concrete. seismic behaviors are analyzed, including inter - story displacement, base shear - displacement skeleton curves, and equivalent viscosity - damping curves. a program is programmed to carry out the elasto - plastic dynamic analysis, and displacement time - history curves of the two models are derived. the test and analysis results show that the laminated vierendeel truss with prestressed concrete and shape steel concrete has excellent seismic behaviors. it can solve the disadvantages of laminated vierendeel trusses used in transfer story structures. finally, some design suggestions are put forward, which can be referenced by similar engineering

    為滿足建築物大空間和靈活隔斷要求，在高位轉換層結構中採用迭層空腹桁架結構.首先分析了其受力性能，得出了空腹桁架各構件合理的截面剛度以及布局形式.然後結合一實際工程，進行了兩榀迭層空腹桁架轉換結構模型（ 1 : 8相似比）的豎向荷載下靜力試驗以及擬動力試驗.其中一榀為普通混凝土迭層空腹桁架，另一榀配置了預應力和鋼骨混凝土，對比分析了兩模型的層間位移比、骨架曲線以及等效粘質阻力系數等抗震性能的比較，並進行了彈塑性動力分析.試驗和分析結果表明，配置預應力和型鋼混凝土的迭層空腹桁架轉換結構具有良好的抗震性能，可以成功地解決迭層空腹桁架作為轉換層結構所產生的弊端問題，最後對這類轉換層結構提出了相應的設計建議
  8. The recombinants were constructed by transforming ppic9 a - xynb into p. pastoris gs115. the assay results revealed that the xylanase gene xynb was overexpressed and secreted effectually in p. pastoris. in 3l fermentor the expression level of xylanase xynba exceeded 1200iu / ml and the expressed xylanase had normal bioactivity. the molecule weight of xynba was determined as about 31kd which is higher than 23kd of original enzyme xynb from streptomyces olivaceoviridis a1. xynbb was gotten by deglycasylation of xynba, whose molecule weight returned to 23kd. we comparised the enzymatic properties of xynba expressed in p. pastoris, xynbb deglycasylated from xynba and xynb produced from streptomyces olivaceoviridis al : there was little difference among the three enzymes on optimal ph, the optimal ph of xynb and xynba were both 5. 2, the optimal ph of xynbb was 5. 0 ; the optimal temperature of xynb and xynba were both 60 c, while the optimal temperature of xynbb was 50 ? ; because of glycosylation the thermal stability of xynba was better than xynb and xynbb ; the specific activity of xynba and xynbb were 883. 88iu / mg and 832. 5hu / mg respectively, which were both lower than 2814. 45iu / mg of xynb ; the km values of xynb and xynba were similar to each other which were 21. 56 ( g / kg ) and 20. 87 ( g / kg ), while the km value of xynbb was 27. 10 ( g / kg ) ; the fmax of xynba and xynbb were 4568umol / mg. min and 5329umol / mg. min respectively which were lower than 27623 umol / mg. min of xynb ; additionally all of the three enzymes did not display cellulase activity. they all had well resistance to pepsion and trypsin, and were not sensitive to metal iron, surface active agent and chelating agent. the analysis of different xylans enzymatic hydrolysate revealed : by xynba, that the main constitutions of enzymatic hydrolysate of birch wood xylans were xylotriose and xyloquaiose, which account for 68. 43 % and 16. 50 % respectively, additionally there was 11. 79 % of xylobiose ; the main constitutions of enzymatic hydrolysate of corncobs xylans were xylobiose and xylotriose, which account for 81. 78 % and 11. 55 %. the result indicated that this xylanase was a kind of 1, 4 - b - d - xylanohydrolase and was fit to used in industrial procession of xylooligosacc harides

    進一步對xynba進行了脫糖基化處理得到xynbb ，其分子量恢復到23kd ，證明xynba是糖基化蛋白。通過對畢赤酵母重組表達的木聚糖酶xynba 、脫糖基化的木聚糖酶xynbb以及橄欖綠鏈黴菌a1所產原酶xynb之間酶學性質的比較發現：三種酶的最適ph差異不大， xynb和xynba均為5 . 2 ， xynbb為5 . 0 ； xynb和xynba的最適溫度均為60 ， xynbb降為50 ：在耐熱性上， xynba由於糖基化作用熱穩定性明顯高於未糖基化的xynb和xynbb ； xynba和xynbb的比活性分別為883 . 88iu mg和832 . 51iu mg ，明顯低於原酶的比活2814 . 45iu mg ； xynb和xynba的km值相當，分別為21 . 56 （ g kg ）和20 . 87 （ g kg ） ，而xynbb的km值較大為27 . 10 （ g kg ） ； xynba和xynbb的vmax相差不大，分別為4568 mol mg ? min和5329 mol mg ? min ，明顯低於xynb的27623 mol mg ? min此外三種酶均無纖維素酶活性，對胃蛋白酶和胰蛋白酶有很好的抗性，且對作用環境中的各種離子、表面活性劑、螯合劑不敏感。通過對不同木聚糖的酶解產物的糖份分析發現：以樺木木聚糖為底物時，酶解產物主要為木三糖和木四糖，含量分別為68 . 43和16 . 50 ，另外還含有11 . 79的木二糖；以玉米芯木聚糖為底物時，酶解產物主要為木二糖和木三糖，含量分別為81 . 78和11 . 55 。
  9. There was no difference in other biologic characteristic of mscs between the two separation method, such as cell anchorage ratio and clone formation ratio. ( 2 ) plga film presented uniformity frame with no protuberance and fissure under scanning electron microscopy ( sem ). big aperture with smooth wall and average 400 m i n size running - through each other was observed in porous plga substrate, around the big aperture there were many round micropores about 5 m size. all of the structure were equal and uniform, which satisfied the further research work. ( 3 ) mscs adhesion at earlier time was promoted by biotiegenrafter 3h, cell number was ( 1. 5 0. 18 ) 105 in the plga film coated with biotiegen group, which was significantly higher than that in plga film group ( p < 0. 01 ) and higher than that in coverslip group ( p < 0. 05 ), which cell number was ( 1. 04 0. 21 ) 105. after 6h and 12h biotiegen could not promote cell adhesion, and cell proliferation and alkaline phosphatase ( alp ) activity were not promoted dramatically during 9 days. ( 4 ) cell adhesion was promoted by fibronectin or collagen type i

    G ） i型膠原、纖維粘連蛋白促進細胞增殖，細胞接種后3 、 6 、 gd三個檢測時間點，實驗組細胞均明顯高於對照組。與1型膠原相比，纖維粘連蛋白刺激作用更強。 ） i型膠原、纖維粘連蛋白尚能誘導mscs細胞向成骨細胞分化，不僅表達成骨細胞標志物ocn 、 alp 、 opnmrna ，而且堿性磷酸酶活性明顯增高，堿性磷酸酶及鈣結節7第四軍醫大學博士學位論文一染色均強陽性， i型膠原組mscs細胞堿性磷酸酶活性較fn組更高，有顯著性差異；同時，兔疫組化染色表明，經纖維粘連蛋白作用的mscs1型膠原表達陽性。
  10. This article, according to a number of source materials, discusses the criticism on relativity, and analyzes the character and method of the critical activity

    文章根據有關原始資料，比較系統地討論了這一時期對于相對論的批判情況，並對這一批判活動的性質及方法作了初步分析。
  11. ( 1 ) the economic characteristics decide the development of world aquaculture. because of the character of denseness of resource and labour, countries which have longer coastline, more population and which are not developed have high output of aquatic product. because of the nature of aquatic consume, the demand of aquatic product is high, while less resources are allot in aquaculture in developed country, which decides the activity of international trade of aquatic, high value aquatic product favor to developed countries. because the high increase of world population, aquatic resource crock up increasingly. the output of aquatic product ca n ' t increase high in a longer time, but with the advance of

    由於水產品生產的資源和勞動密集特徵，沿海海岸線長、人口多、欠發達國家水產品產量高，發達國家、海岸線短、內陸水資源相對稀缺的國家水產品產量低。由於水產品消費具有兩重性、水產品需求彈性大的特點，發達國家對水產品需求量大，而發達國家的資源較少分配到水產品生產上，這就決定了水產品國際貿易比較活躍，並且高價值水產品流向發達國家。由於水產品的易腐特性，國際水產品貿易主要品種為水產加工品。
  12. The dissertation is mainly including four section : the first is the experiments done in the tank, which will supply the reliable information of imaging data ; the second is image edge detection by the use of the art of the zernkie moments, which is used to detect the liner and threaded edge of the object, the third is the underwater camera calibration technique, the forth is automatic positioning the location of the camera by used of the art of cross - ratio, the result of which is satisfied

    本文工作分為四個部分：第一部分是水槽實驗部分，它為后續的工作提供了可靠的圖像數據信息；第二部分是基於zom距的直線、曲線邊緣提取技術及相關的與處理技術；第三部分，水下攝像機標定技術研究，基於改進的tsai演算法，採用逐步分解的標定策略。並探討了一種相對簡單的、靈活的標定技術；第四部分是攝像機定位技術研究，採用具有平移不變性的交比進行攝像機定位，模擬試驗的最大誤差不超過2 ，效果還是令人滿意的。
  13. At the cadmium concentration of 2. 19mg / l and 4. 37mg / l, for 72h, the na + - k + - atpase activity of kidney tissues were decreased very significantly. the higher of the concentration of cadmium or the longer of the exposure the more the enzymic activity was decreased. the na + - k + - atpase activity of gill tissues were decreased but not significantly at the low concentratioin of cadmium

    對na ~ + - k鍋離子對草魚魚種組織sod和atpase的影響及毒性研究atp酶的活性測定表明，與對照組相比， cd 》對草魚魚種鰓和腎的na k atp酶活性均有抑制作用，這種抑制作用隨著暴露時間的延長而加強。
  14. In order to study the influence factors of aoa of rose flowers, the effects of drying and extraction methods on the aoa of rose flowers were investigated. the results indicated that drying after high - temperature short - time pretreatment was rather effective to maintain their aoa ; the aoa of water extracts was stronger when the temperature was raised from 25 to 100 ; by using orthogonal test, the optimum extraction conditions of rose flowers were : solvent - 75 % ethanol ; ratio of material and solven - 1 : 10 ; extraction times - three times with 24 h at one time, at the room temperature. the extracts obtained by 75 % ethanol were fractionatedly extracted with petroleum, diethyl ether, ethyl acetate and n - butanol in turn, and the various fractions " aoa were analyzed

    為了探討玫瑰花抗氧化活性的影響因子，比較了不同乾燥方法、提取方法對其抗氧化活性的影響，發現：經短時高溫處理后再進行乾燥有利於較好地保持玫瑰花的抗氧化活性；以水作溶劑提取時， 25 100范圍內水提液的抗氧化活性隨著溫度的升高而增強；通過正交實驗篩選得到常溫下玫瑰花抗氧化活性物質的最佳提取方法為： 75乙醇為溶劑，液料比1 ： 10 ，提取3次，每次24h ； 75乙醇提取物依次用石油醚、乙醚、乙酸乙酯、正丁醇等有機溶劑進行兩相分部萃取，發現玫瑰花的抗氧化活性物質主要存在於乙酸乙酯部，說明玫瑰花抗氧化活性主要成分可能是單寧類、黃酮苷類和原花色素類化合物； 4
  15. This study was conducted to examine the interrelationship of 10 seed vigor traits in 12 wheat genotypes through variance, co - variance and path coefficient analysis, to determine broad - sense heritability, and to estimate genetic advance under selection. the genotypes showed significant difference for all traits, except for percentage of normal seedling. genetic correlation between conversion efficiency of seed reserve, electrical conductivity with other traits were not significant, showed that selection for any of them might be possible without hampering any other traits. however path coefficient analysis indicated that conversion efficiency of seed reserve, seed reserve utilization ratio have strong direct effect in affecting seedling weight, and that mean germination time has significantly negatively correlated in affecting gi. moderate to high estimates of broad - sense heritability, genetic coefficient of variation and expected genetic advance were obtained for electrical conductivity, germination index, mean germination time, seed dry weigh, seedling dry weigh, seed reserve depletion ratio indicating the possibility for improving these traits

    本研究利用12個普通小麥品種對10個種子活力性狀的遺傳變異和相關研究，表明除正常幼苗百分率外，其餘種子活力性狀在品種間均存在顯著的差異.種子貯藏物質轉換效率、電導率兩個性狀間及與其它性狀均無顯著的遺傳相關，因此對他們的選擇不會影響到其它性狀.通徑分析表明幼苗干重主要取決于種子貯藏物質轉換效率、種子貯藏物質利用速率;發芽指數主要由平均發芽時間決定.電導率、發芽勢、幼苗干重、種子干重、發芽指數、種子貯藏物質消耗比率6個性狀表現中到高的遺傳力、遺傳變異系數和相對遺傳進展，指明通過遺傳育種手段改良這些性狀是可能的
  16. With the purpose of better understanding some weak links in this subject, we comprehensively and systematically compared the effects of some typical inhibitors and their different combined ways in inhibiting cd bioavailability in purple soil, further studied the laws and affecting factors of cd ' s transfer and transformation in soil - plant system, revealed the mechanisms inhibitors function, and explored the practicable inhibitor prescriptions and their usage. the results are expected to provide reliable techniques for controlling cd pollution of agricultural soils in chongqing and it is also significant to ameliorate soils polluted by other kinds of heavy metals. comprehensive methods including pot experiment, laboratory culture experiment, kinetic and thermodynamic adsorption - desorption experiment were adopted in this study, and the acidified purple soil was chosen to test, considering that cd is highly active in this soil

    本研究針對重慶市農業土壤的污染狀況，選取鎘活性較高的酸化紫色土為供試土壤，採用盆栽試驗、培養試驗、化學熱力學與動力學吸附試驗相結合的方法，系統研究和比較多種調控劑及其不同組合方式對鎘生物活性的效應，並揭示鎘在土壤?植物系統中的遷移轉化規律及影響因素，進一步分析調控劑的作用機理，探尋具有實際應用價值的調控劑配方及合理使用的方法，這不僅可以為重慶市農業土壤鎘污染的防治提供可靠的技術保障，而且對于其它重金屬污染的治理也有一定的理論意義。
  17. Comparative experiment testified that agno3 was better than cucl2, if supported on the same ac modified by 30 % hno3, while silica gel was better than ac modified by 30 % hno3 as a support, if loaded with the same amount of agno3

    對比實驗表明，同樣以30硝酸氧化的承德果殼炭為載體，硝酸銀與氯化銅相比，分離因數較高，但乙烯吸附量稍低；而在同樣的硝酸銀負載量情況下，與活性炭相比，以硅膠作載體時吸附劑性能更佳。
  18. Results ( 1 ) effect of different concentration of lead on the activity of pkc for the control, the activity of pkc increased gradually at the early devel - opping stage and rose sharply on the 15th day, reached the peak, then decreased on the 22nd day and increased shortly until the 30th day with the activity almost turned back to the level at birth or even lower. compared with the control, groups treated with different concentration of lead showed a graph of different cytoplasmic activity of pkc. most of the groups reached the peak at p15, but the 0

    L ）鉛暴露小鼠腦胞漿pkc活性與正常組相比可見一定的差異，多數組第15日問）為最高峰，低濃度染鉛組在某些時段中pkc比活性高於正常組，而隨著鉛濃度的升高，這些時段的pkc活性逐漸降低，較高鉛濃度組酶活性均低於正常組； inunovl汐）組的p22以後，比活性迅速升高，至p30時比對照組高出很多。
  19. The comparative analysis of sequences indicated that the sequences of meq in different pathotypes are relatively conserved and the homology of the amino acid sequences is very high. the significant differences include two mutations in both mdv - 1 vaccine strains cvi988 / rispens and 814 strain : the deletion of a proline ( no. l93aa ), and this mutation is just exactly located in a 15 - amino - acid ( eelcaqlcstppppi ) repeat sequence within the c - terminal transactivation domain of meq protein ; and a point mutation with a shift from alanine ( a ) of all virulent strains to serine ( s ) was occurred on the no. 71 aa

    結果發現， mdv不同致病型的meq基因序列相對比較保守，它們相互間核苷酸和氨基酸序列的同源性均很高；但是，與所有七個致瘤性的mdv毒株相比，二個型弱毒疫苗cv1988 rispens株和814株均出現了兩個特徵性的突變：即第194位的p缺失性突變和第71位氨基酸由a變成了s的位點突變；缺失性突變恰恰位於meq基因中轉錄激活域內的一個多脯氨酸的重復序列（ pppp ）之中。
  20. The monitoring hydro - data of 8 sections from fudedian to zhaoquanhe along the main stream of liaohe river are collected and analyzed. the nemero indexes for the water pollution of liaohe river are calculated and illustrated in diagrams. the results show that the principals of the spatial - temporal cod level changes in the main stream of liaohe river. also, two obvious characteristics of cod pollution are found out : the absolute cod level is very high in this river ; the ratio of cod bod is significantly higher than average. and the phenomena are explained in detail in this paper from multiple aspects such as industrial point pollution, soil and water losses, municipal sewage, agricultural water pollution and etc, based on the relationship analysis between cod, ss and water quality parameters

    對遼河幹流從福德店到趙圈河8個斷面的水質監測數據進行統計分析，計算得出遼河幹流水體污染的內梅羅指數，並以圖表形式揭示了遼河幹流cod時空變化的規律，總結出了遼河cod污染的兩個主要特點： 1 cod絕對值高2 cod bod相對比值也明顯偏高。通過對cod與ss cod與水質參數的相關性分析，從工業點源水土流失面源城市生活污水及農業用水等方面的污染解釋了上述特點。
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